ShieldFELT XTRAShield

High Performance Felt Membranes

XTRAShield is Shield’s range of high performance, polymer modified felt membranes designed to be used in inverted and warm flat roof build ups. XTRAShield is ideal for waterproofing large or small areas and can be used within either a layered felt system, or as individual products that can be used independently of each other. It incorporates a cap sheet with optional mineral colours to suit any style. All exposed membrane should have a mineral finish to protect from UV rays. 

XTRAShield is an SBS or APP modified bitumen based membrane, that incorporates varying weight and length rolls for use as VCL’s, underlays, intermediate layers and cap sheets with heavy duty mineral to guard against solar degradation.

Shield Membrane felts are, as standard, supplied with a thermofusible sacrificial film on the reverse to accurately gauge the correct amount of heat applied to the underside for the best possible bond and bleed.

This high performance felt is ideal for use as a 3-layer system to waterproof flat, sloped and horizontal areas in inverted and warm roof specifications. It is specifically designed, manufactured and certified to be un-compromised and resistant to temperatures down to -20°C. It is also able to withstand light foot traffic, mechanical stresses, and high temperatures. The felts all have the option of a reinforced spunbond polyester base, or reinforced glass fibre base.

Our industry leading management team have extensive experience with installation and have designed all of our felts to have a wide range of uses. When installed correctly this product has a life expectancy in excess of 25 years.



POL25f/s Vapour Control Layer – 2.5kg/m2 – Polyester Base – 1m x 16m

POL45f/s Intermediate Layer – 4.5kg/m2 – Polyester Base – 1m x 8m

POL55 M Mineral Capsheet – 5.5kg/m2 – Polyester Base – 1m x 8m

Glass fibre base and other variations to these products may also be available, please contact us for additional information.

  • High-performance polyester and glass fibre fabrics to provide stability and durability
  • Specially blended polymers and APPs to give maximum flexibility and stability
  • High content modifiers to contend with broader temperature extremes
  • Comprehensive guarantees available
  • Developed & manufactured in the UK
  • Withstands the highest temperature variations in the UK (over 100°C range)
  • Extraordinary tensile strength and tear resistance

You’re protected with Shield on your side

Shield Membranes Limited’s strength is in the variety of it’s system ranges and services, all products relating to external waterproofing and finishing are available through us. Shield is the first new UK based entity to venture into the felt membrane manufacturing industry industry for 30-years. Based in Corby, this gives us a centralised location giving us great supply links to all our distributors and installers nationwide.